Exhibiting instrument



April 17, 1945. G Q Q N 2,373,695

' I EXHIBITING INSTRUMENT Filed May 15, 1942 2 Sheets-Sheet l Inven for,

2% wi -M y Amwa EXHIBITING INSTRUMENT Filed May 15, 1942 2 SheesSheet 2 v Inventor Gzamas 0. .L/EN

Patented Apr. 17, 1945 UNITED STATES PATENT OFFICE I 2,373,695 EXHIBITING INSTRUMENT George 0. Lien, Sacramento, Calif.

Application May 15, 1942, Serial No. 443,164

3 Claims.

The present invention relates to new and useful improvements in recording instruments designed primarily for use by canneriesto indicate on a chart the length of time a particular food prodnot has been cooked at a predetermined temperature.

An important object of the present invention is to provide a pair of adjustably spaced indicators mounted in position adjacent the chart and arranged in association with the time graduations thereon to indicate the time elapsing during the cooking of the product and including an adjustable support for the indicators for properly positioning the latter relative to the chart.

A still further object is to provide a device of this character of simple and practical construction, which is efficient and reliable in performance, relatively inexpensive to manufacture, readily installed in operative position with respect to a conventional form of time control rotating chart, and which otherwise is well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout and in which:

Figure 1 is a front elevational view.

Figure 2 is a detail of the adjustable indicators and support therefor.

Figure 3 is an edge elevational view thereof, and

Figure 4 is a sectional view on a line 4-4 of Figure 2.

Referring now to the drawings in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates an instrument panel on which the chart 6 is rotatably positioned, the chart being rotated by means of a conventional form of clock mechanism from a shaft 1.

The surface of the chart is subdivided with curved substantially radially extending lines 8 denoting divisions. of time and concentric lines 9 denoting degrees of temperature.

A temperature controlled stylus arm Ill is formed at its outer end with a scriber or pen bearing against the chart and movable radially thereof in accordance with variations of the temperature to which the batch of food is being subjected while being cooked to record such temperature on the chart in a manner as will be apparent.

taken substantially In order to indicate a predetermined length of time for cooking the food, I provide a pair of indicators-designated at l2 and 13, each of the indicators being curved longitudinally in accordance with the curvature of the lines 8 and formed with longitudinally extending slots I4 receiving set screws l5 for attaching a clamping plate l6 thereto, the clamping plate being disposed crosswise of an arcuate slot 11 formed longitudinally in an arcuate supporting plate l8 positioned adjacent the edge of the chart.

Graduations l9 are marked on the upper surface of the plate l8, the graduations being curved corresponding to the radial lines 8 of the chart and adapted for alignment therewith by one edge of the indicators I2 and I3, as will be apparent from an inspection of Figure 1 of the drawings.

The supporting plate I8 is adjusted circumferentially with respect to the edge of the chart by means of a screw 20 threaded through a lug 2| rising from the plate [8, the screw being provided with a flange 22 positioned between a pair of apertured upstanding ears 23 rising from the surface of the panel 5, the ears being disposed at opposite sides of the flange 22.

At each end of the plate l8 are arcuate slots 24 through which screws 25 are positioned for securing the plate l8 to the panel 5, the tightening of the screws 25 serving to secure the plate in its adjusted position.

Both of the indicators l2 and be adjusted circumferentially chart 6 and the indicator I3 i preferably used as a fixed indicator and the indicator I2 is adjusted relative thereto to designate the particular length of time at which the food should be cooked, both of said indicators having one end overlying the chart a position for cooperating with the radial mes Indicator I3 is always set at zero on the gradnations of plate l8 and is moved only when it is necessary to line up with the line made by the pen II at the start of cooking. This adjustment is made by loosening screws l5 and turning screw 20 until indicator I3 is properly aligned.

Graduations on plate 18 are indicated in minutes and indicator I2 is moved along plate 18 and aligned with the proper graduation that corresponds with the desired time the cooking is to continue.

As an example: When cooking spinach for 35 minutes at 252 F. indicator I3 is set at 252 and lined up with line showing start of cook, Indicator I2 is set at 252 and moved down plate l8 and set on graduation which indicates lapse of 35 13 are adapted to with respect to the minutes. The chart is rotated counter-clockwise and when the starting line reaches indicator l2, the cooking is completed.

It is believed the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.

Having thus described the invention what I claim is: v r p 1. An exhibitor of the class described comprising in combination a rotatable time controlled chart including a scale, a scriber mounted ations, a fixed arcuate support adjacent one edge of the chart and having time graduations forming a continuation of said time graduations, and a plurality of indicators carried by the support adapted for aligning the time graduations of the chart and support and arranged in spaced relation to each other to designate a predetermined lapse of time during the recording by the scriber.

3. An exhibitor of the class described comprising in combination a rotatable time controlled chart, a scriber mounted for movement radially on the chart to produce a record thereon in acfor movement radially on the chart to produce a record thereon in accordance with functional variations and a plurality of stationary indicators projecting inwardly at the edge of the chart in cooperation with the scale thereon and arranged in spaced relation to each other to designate a predetermined lapse of time during the record ,ing by the scriber.

2. An exhibitor of the class described comprising in combination a rotatable time controlled chart, a scriber mounted for movement radially on the chartto produce a record thereon in accordance with functional variations said chart having concentric circles marked thereon to provide functional graduations and radially curved lines crossing the circlesto provide time graducordance with functional variations said chart having concentric circles marked thereon to provide functional graduation and radially curved lines crossing the circles to provide time graduations, a fixed arcuate support adjacent one edge of the chart and having time graduations forming a continuation of said first-named time graduations, means for adjusting the support in a circumferential direction relative to the chart, and a plurality of indicators carried by the support adapted for aligning the time g'raduatioh's of the chart and -support and arranged in spaced relation to each other to designate a predetermined lapse of time during the recording by the scriber. v GEORGE O. LIEN. 

